公开(公告)号：US11137379B2

公开(公告)日：2021-10-05

申请号：US15838081

申请日：2017-12-11

Applicant: DIONEX CORPORATION

Inventor： Alan Daniel Yim ,  Paul H. Gamache ,  Ryan S. McCarthy

IPC: G01N15/00 ,  G01N30/84 ,  G01N30/64 ,  B05B7/00 ,  B05B7/08

Abstract: A nebulizer for a charged aerosol detection (CAD) system is disclosed. The nebulizer is provided with a spray emitter for generating a spray of droplets within a central region of a spray chamber. The central region is separated from an upper region by a horizontally projecting rib, which defines a passageway between the central and upper regions. The major direction of droplet travel within the upper region is substantially reversed with respect to the major direction of droplet travel within the central region. Larger droplets are unable to negotiate the turn from the central to upper regions and impinge on a rear surface of the spray chamber. Removal of larger droplets has the advantageous effect of enabling the detector to sense a smaller range of particle sizes, which establishes a relatively steady electrical current at the detector.

公开(公告)号：US09851333B2

公开(公告)日：2017-12-26

申请号：US14288693

申请日：2014-05-28

Applicant: DIONEX CORPORATION

Inventor： Alan Daniel Yim ,  Paul H. Gamache ,  Ryan S. McCarthy

IPC: G01N30/96 ,  G01N30/84 ,  G01N30/64 ,  B05B7/00 ,  B05B7/08

CPC classification number: G01N30/84 ,  B05B7/0012 ,  B05B7/0876 ,  G01N30/64 ,  G01N2030/8452 ,  G01N2030/8464 ,  G01N2030/847

Abstract: A nebulizer for a charged aerosol detection (CAD) system is disclosed. The nebulizer is provided with a spray emitter for generating a spray of droplets within a central region of a spray chamber. The central region is separated from an upper region by a horizontally projecting rib, which defines a passageway between the central and upper regions. The major direction of droplet travel within the upper region is substantially reversed with respect to the major direction of droplet travel within the central region. Larger droplets are unable to negotiate the turn from the central to upper regions and impinge on a rear surface of the spray chamber. Removal of larger droplets has the advantageous effect of enabling the detector to sense a smaller range of particle sizes, which establishes a relatively steady electrical current at the detector.